Comparing Augmented Reality Displays for Individual Feedback in Classroom Settings
Nick Wittig, Noro Schlorke, Roman Heger, Theresa Wettig, Marion Koelle, Uwe Gruenefeld, David Goedicke, Donald Degraen, Ricarda Steinmayr, Stefan Schneegass
Figure 1: The ProLamp: An adjustable standalone device enabling projection-based AR Feedback (a) and an intersection view of the lamp, showing its internal structure and components (b)
ABSTRACT Augmented Reality (AR) is promising in providing individual learning support for students. However, it is currently unknown which display technology is appropriate to use in classroom settings. In this work, we investigate different AR displays and their usability challenges. In a field study (N = 122) with eleven classes of sixth graders from three schools, we compared the use of a smartphone and tablet to a custom-built projector-camera setup called ProLamp. Our system enables in-situ spatial augmented reality (SAR) feedback through Wizard of Oz to be projected directly into the physical environment, employing a lamp-like design that blends into educational settings. Our results show that all devices provided high pragmatic qualities and motivation, with an increased user experience for the ProLamp compared to the smartphone regarding hedonic quality. This work shows that all investigated display types are feasible for educational use in specific contexts, each showing several tradeoffs.
Links: Paper
- Hardware contains all files required to 3D print all components of the ProLamp and a manual for construction.
- Software contains the Python package enabling further projects with the ProLamp (Calibration, MarkerTracking, Connection to Unity) and the scripts used for the Wizard Of Oz study described in the paper.
Figure 2: The AR Feedback for all devices